ABB Arc Guard System TVOC-2 Installation And Maintenance Manual page 46

46 ABB ARC GUARD SYSTEM™ – T VOC-2 INSTALL ATION AND MAINTENANCE GUIDE
6.1 Introduction
The Arc Guard System™ requires maintenance once every
year. The yearly maintenance includes checking detectors,
The Arc Monitor and the light from CSU (option).
6.2 Maintenance
To check the detectors and the Arc Monitor repeat the
following steps:
1. Simulate an arc by using a camera flash.
2. Set the camera flash to approximately 0.5 ms.
3. Place the camera flash at a distance between 1.5 -2
meters (60-80 inches) from the detector.
4. Make sure no object is standing in the way.
5. Point the camera flash towards the detector.
6. Press the flash test button.
Do the following steps to check the Arc Monitor:
1. Check the HMI display.
2. If the detector reacts correctly and causes a
trip then it should show on the HMI display as a
notification window.
3. The notification window shows, Trip has Occurred,
which detector, which trip contact, at what time
and date.
4. The breaker that is connected to the Arc Monitor
should trip, depending on the configuration.
5. At the notification window, If manual reset is
configured, press Reset. If auto reset is configured,
press Menu.
INFORMATION
In order to prevent a shut-down of the whole
switchgear during the maintenance process,
replace the breakers which are connected to
the Arc Monitor with test breakers. This can be
done by replacing the terminal to K4, K5, K6
with the test breakers.
WARNING
Remember to replace the test breakers with
terminal breaker K4, K5, K6 after testing!
The maintenance procedure to check the detectors and
Arc Monitor is the same as for a Start-Up of the system for
the first time.
INFORMATION
See: "4.3.2 Controlling" on page 35.
To check the light from Current Sensing Unit, CSU.
Perform a manual diagnostic via the HMI to check if
the light from CSU is degenerating. This will show as a
notification window in HMI with an Error code.
INFORMATION
How to perform a manual diagnostics,
See: "Perform Diagnostics" on page 40.
See: "List of error codes" on page 52.